Procedures: Upon approval by IRB, the data will be analyzed using statistical analysis and the data will be published in a peer-reviewed journal, as this data has not yet been published. We will receive the data from the PI (Dr. Mai Hong Bang, MD Ph.D., Associate Professor, Department of Hepatogastroenterology). After receiving the IRB approval, we will conduct secondary analysis of the data. We will receive the data as an electronic file excel file format with the code book for all the variables. We will do frequency and data checking and data management to prepare the data for analysis. We will do recoding and create new variables from the existed variables as a way to prepare for the data analysis.